Improvement in spinning-wheel heads



PATENT OFFICE.

T. DWIGHT HOTCHKISS, OF GUILFORD, CONNECTICUT.

IMPROVEMENT IN SPINNING-WHEEL HEADS.

Specification forming part of Letters Patent N0. 42,66l. dated May 10,1864.

To all whom it may concern:

Be it known that I, T. DWIGHT HOTCH- KISS, of Guilford, in the county ofNew Haven and State of Connecticut, have inventeda new and usefulImprovement in Spinning-Wheel Heads; and I do hereby declare that thefollowing is a full, clear, and exact description ofthe same, referencebeing had to the accompanying drawing, forming part of this specication, said drawing representing an elevation, partly in section, of aspinning-wheel head with my improvement. i

This invention consists in the substitution of springs for theadjusting-screws commonly employed fortighteningthe band which drivesthe spindle, whereby the tension ot' the said bandis adjustedautomatically, and the necessity for manual adjustment is dispensedwith.

A is the stock of the head, and B the pin attached thereto to secure itto the frame of the spinning-wheel. C is the spindle, and a a itsbearings, constructed and attached to the stock A in t-he usual manner.D is the shaft on which is secured the pulley E, around which and thepulley G on the spindle runs the band b, which drives the spindle. Thesaid shaft has also fast upon itthe usual pulley, F, which receives theband from the spinningwheel for driving the said shaft. H H are thestandards which contain the bearings for the shaft D. The lower partsot' these spindles are turned to lit easily into holes c c, boredthrough the stock A for their reception. The upper portions of theseholes are made of larger size than the lower positions, to form lshoulders d d, which serve as bearings for the adjusting springs e c,and portions ot' the standards are turned to fit the upper andlargerportions of the said holes, and portions to lit the lower and smallerportions ot' the said holes having shoulders ff, to rest upon the saidsprings, which are of metal wire, and ot' spiral construction coiledaround the standards, and applied between the shoulders d d and f f.These springs, acting upon the shoulders f f, exert a constant upwardpressure upon the standards H, and keep the band b tight without anynecessity for manual adjustment ofthe said standards, and the band bcontines the said'standards in place.

India-rubber springs may be substituted for the spiral metal springs ee, or any other kind ot' metal springs may be used-as, forinstance, asingle curved spring` so applied outside ot" the stock A as to exert anupward pressure upon both standards H H simultaneously.

What I claim as my invention, and desire to secure by Letters Patent, is

So applying a spring or springsin combination with the standards H H ot'a spinningwheel head as to exert an upward pressure on the saidstandards and preserve a proper tension of the band b without the use ofscrews or any other manual adjustment.

T. DWIGHT HOTCHKISS. Witnesses:

. LUcIUs DUDLEY,

A. H. BENTON.

